INDU envelope/NYSE breadth system. breadth indicator buy signal gained strength as INDU tagged lower 4% envelope (not shown), rallied and closed back above the 3% envelope. SPX,INDU, NYSE made lower lows as the 20 wk cycle is bottoming, i thought they would test with higher lows, SPX 20 wk downside projection exceeded by about 10 points on a print basis, closing prices did hold, i'll call that a push. envelope/breadth buy signal triggers as a 20 wk cycle low bottoms. IMO this should be a reliable signal.